You can access the moderation interface to the right of each message by clicking on the link Quick Moderation Dashboard. From there you can have a more global control on members’ situation and messages

The first frame at the top right gives you pieces of information about the member (the email address or if this member is likely to use alternative pseudo aka Fake pseudo or Multinicks).
The frame below suggests actions that can be performed.
Clicking on “Multinicks” will redirect you to the multi-pseudos management interface.